John Q. Walker

Canadian pianist Oscar Peterson passed away in 2007 - but a new album and performance series is bringing his music back to life. Durham, N.C.-based Zenph Sound Innovations used their digital player piano technology to "re-perform" never before-released recordings of Peterson from the 1970s and '80s, creating an album called "Unmistakable" that is being released this week. We talk with Zenph CEO John Q. Walker about the recording process and the authenticity of bringing a man's music to the stage and the recording studio - without the man himself.

Digital technology is enabling jazz pianist Art Tatum, who died in 1956, to "perform" again. His music is the subject of a new show at the Apollo Theater as well as a new CD on Sony BMG. John Q. Walker, the founder and president of the Raleigh, N.C.-based Zenph Studios, ...